sdsdot (USM Version)¶
Computes a vector-vector dot product with double precision.
API¶
Syntax¶
event sdsdot(queue &exec_queue,
std::int64_t n,
float sb,
const float *x,
std::int64_t incx,
const float *y,
std::int64_t incy,
float *result,
const vector_class<event> &dependencies = {})
sdsdot
supports the Host, CPU, and GPU devices.
Input Parameters¶
- exec_queue
The queue where the routine should be executed.
- n
Number of elements in vectors
x
andy
.- sb
Single precision scalar to be added to the dot product.
- x
Pointer to the input vector
x
. The array must be of size at least (1 + (n
- 1)*abs(incx
)). See ref:matrix-storage for more details.- incx
Stride of vector x.
- y
Pointer to the input vector
y
. The array must be of size at least (1 + (n
- 1)*abs(incxy
)). See ref:matrix-storage for more details.- incy
Stride of vector y.
- dependencies
List of events to wait for before starting computation, if any. If omitted, defaults to no dependencies.
Output Parameters¶
- result
Pointer to where the result (a scalar) will be stored. If
n
< 0 the result issb
.
Return Values¶
Output event to wait on to ensure computation is complete.